[Kea-users] DHCP4_PACKET_NAK_0001 error for DHCPDISCOVER packet

[McBride Lawrence]

Hi,

I have now managed to get my Kea server up and running (had to revert to v1.1 rpm install from 1.4 source build) and I have also managed to get the MySQL backend talking to it as well. However, when I try and test it with a single pool in DHCP4 it keeps failaing with the following message:

ERROR [kea-dhcp4.bad-packets/22903] DHCP4_PACKET_NAK_0001 [hwtype=1 c8:f9:f9:d6:9c:11], cid=[01:c8:f9:f9:d6:9c:11], tid=0x5e3b: failed to select a subnet for incoming packet, src 10.213.233.126, type DHCPDISCOVER

The config is as below:

# Global Options for DHCP
# Standard Options
# DNS Servers
  "option-data": [
      {
          "name": "domain-name-servers",
          "data": " xx.xx.xx.xx, xx.xx.xx.xx, xx.xx.xx.xx "
       },
   ]
  },
# Custom Options
# TFTP Servers
# TFTP option 150 definition
  "option-def": [
      {
          "name": "voice-tftp",
          "code": 150,
          "space": "vendor-encapsulated-options-space",
          "type": "record",
          "array": true,
          "record-types": "ipv4-address, ipv4-address",
          "encapsulate": ""
       }
   ]
  },

# TFTP Option Setiings
  "option-data": [
      {
          "space": "vendor-encapsulated-options-space",
          "code": 150,
          "csv-format": true,
          "data": "xx.xx.xx.xx, xx.xx.xx.xx "
       },
   ]
  },


# Below an example of the simple subnet declaration. Uncomment to
# enable it. This is a list, denoted with [ ], of structure, denoted
# with { }. Each structure describes a single subnet and may have
# several parameters. One of those parameters is "pools" that is
# also a list of structures.
  "subnet4": [
      {
          "subnet": "10.213.233.0/25",
          "id": 100,
          "pools": [ {"pool": "10.213.233.1 - 10.213.233.125"} ],
      }
   ]
},

My aim is to use this server for voip so I have my desk phone in the voice vlan the 10.213.233.0/25 is serving but as the error message shows it is unable to get an IP address.

Can anyone offer any help with this?

Lawrence McBride

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